QUILT MEASURES / FABRIC PLANNING

Measure once. Check before you cut.

Usable width, joins and the way you turn a print matter just as much as quilt size.

Use the fabric width you can actually cut

A bolt’s advertised width includes selvages. Measure the usable width after removing them and after prewashing if that is part of your process. The calculators do not estimate shrinkage; a smaller measured width can change the number of panels or strips you need.

Ask your quilter about overage

Backing usually extends beyond the top to allow handling and trimming. Enter the allowance required by your quilter, rather than treating the example as a universal rule. Batting requirements should be checked separately.

Seams consume real width

Two 42-inch panels joined with half-inch allowances produce 83 inches of sewn span, not 84. For a 60 × 80-inch top with four inches extra on each side, the target backing is 68 × 88 inches. Two 88-inch lengths use 176 inches of fabric: 4.889 yards before rounding, or 5 yards at quarter-yard increments.

Turning the fabric can save yardage

Our backing calculator compares full-width panels in both directions. Choose the no-rotation option when a directional print must remain upright. Matching motifs or pattern repeats needs extra fabric beyond this simple plan.

Binding needs a joining allowance

For a 60 × 80-inch quilt with 12 inches for finishing, the required length is 292 inches. With 42-inch fabric and 2.5-inch strips, seven diagonally joined strips provide only 279 inches. Eight provide 318.5 inches. Those eight strips use 20 inches of fabric, rounded to three-quarter yard at quarter-yard increments.

The binding tool covers straight cross-grain strips and diagonal joins. It does not calculate bias binding, quilt-top blocks or border patterns. Confirm your preferred construction method and cutting measurements before using scissors.

Further references: Quilter’s Paradise backing and batting calculator and binding calculator.